#include <iostream>
#include <cmath>
#include <conio.h>
using namespace std;
class USBDevice{
	long m_id;
public:
	USBDevice(long id);
	long getID();
};
class NetWorkDevice{
	long m_id;
public:
	NetWorkDevice(long id);
	long getID();
};
class WirelessAdaptor:public USBDevice, public NetWorkDevice
{
public:
	WirelessAdaptor(long uid, long nid): USBDevice(uid), NetWorkDevice(nid){}
};